--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/paper/src/context.h	Wed Feb 17 16:59:46 2016 +0900
@@ -0,0 +1,43 @@
+/* Context definition example */
+#define ALLOCATE_SIZE 1000
+
+// Code Gear Name
+enum Code {
+    Code1,
+    Code2,
+    Allocator,
+    Exit,
+};
+
+// Unique Data Gear
+enum UniqueData {
+    Allocate,
+};
+
+struct Context {
+    enum Code next;
+    int codeNum;
+    __code (**code) (struct Context*);
+    void* heapStart;
+    void* heap;
+    long heapLimit;
+    int dataNum;
+    union Data **data;
+};
+
+// Data Gear definition
+union Data {
+    // size: 4 byte
+    struct Data1 {
+        int i;
+    } data1;
+    // size: 5 byte
+    struct Data2 {
+        int i;
+        char c;
+    } data2;
+    // size: 8 byte
+    struct Allocate {
+        long size;
+    } allocate;
+};